Transcript Document

Los Alamos National Laboratory
The Climate Ocean and Sea Ice Model
(COSIM) project
Computational and Theoretical Science
Divisions
Trace Gas Emissions from POP
Scott Elliott and Mathew Maltrud
Collaborators: LLNL, NCAR, PNL, ANL, ORNL, WHOI,
The CODiM Group (International S modelers)
Sponsors: DOE Scientific Discovery through Advanced Computing
(SCIDAC), Climate Change Prediction Program (CCPP), NSF, SOLAS
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MAJOR POINTS
Motivation -dynamic marine emissions fields for CAM/CCSM
Modular trace gas geocycling driven by or ported to DML
Maintains POP performance, portability and transparency
About one dozen volatile source compounds tested or developed
Oceanic reduced sulfur now dynamic and coupled to CAM/CCSM
Provide background, demos, case studies and discuss future
Draw on Najjar, PMEL, ZZZ and others including Julia
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OGCM
Ecodynamics
Sulfur module
Data
Annual Average Pacific Propylene (pM)
MECHANISMS SO FAR
500
450
Demonstrations
400
350
300
D A T A (low)
M O DU LE
D A T A (high)
250
200
150
100
50
0
A NTA
SA N T
SP SG
PEQ D
NPTG
KU RO
P SA G
-Methyl Halides
-Propylene
-Nitrous Oxide
-Methane
-Ammonia
Published
-Carbon Monoxide
-Dimethyl Sulfide
-Collective Methods
In Prep -Carbonyl Sulfide
Carbon Monoxide
PMEL cruises at 140W
POP with sensitivity test
quantum yield
April
Fichot, 2006
Azam 1998
December
DMS BIOGEOCHEMISTRY
Stresses upregulate about a
dozen close organic relatives
Transformation in the column
Yield and loss also complex,
set by microbial metabolics
Statistical
Dynamic
BARC
LANL
PAR
NOR
HAD
HAM
CLAW PROJECT
Community driver continues to
be CLAW
Magnitude, sign of ecosystem
effects remain uncertain
Only detailed modeling can
alleviate the situation
That’s SciDAC working with
CCSM
LLNL, NCAR, PNL, ANL, DML
all in coupling experiments
Charlson et al. 1987
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NH4+ mM
NH3 pM
FUTURE WORK
Piston velocity issues
Collective NMHC and the
ozone system
Ammonia as ocean acidifies
Unified multiclass bacteria
Also move beyond gases
Organics at interfaces
Fe/N/S(/Fe/N…) coupling
RDB and CASE coding
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EXTRAS
Schwartz-Andreae Histogram
Teleconnection Strategy
Element
C
N
S
Fe
Primary form
Carbonate
NO3-
SO4-
Fe2+
Rank
CO
NH3/NH4+
DMS(P,thiol)
Dust
NMHC
GBT
S metabolism
Coatings
DOM, CDOM N2O
OCS, MTC
Complexes
Surfactants
H2S
C ligands
Complexes
Fe3+
CH4
DON
Eco/geo unity
Taxonomy, bacteria
Ice and shelf domains
Systems model
Planetary scale engineering
NH4+ Seawater mM
NH3 Boundary Layer pM
Gunson Temperatures
Simo group late 90’s
Global relation to ln(MLD)
Simo group 2007
Global relation with Dose
Rafel has proposed the two best correlations but they are very closely related, and the planet
will not simply slide along his relationships. Imagine moving systems into the anthropocene.
We can readily shift individual ecologies independently to new curves, e.g.
MLD case - Shoaling could favor small producers over large areas while also increasing their
stress levels, or else lead to a prokaryote dominance.
SRD case - Cloud cover could add nutrients for eukaryotes, or cut UV thus lowering stress and
increasing bacterial demand/consumption.
There is thus no escaping the need for detailed biogeographical integrations.
Sargasso Sulfur Climatology
BATS data and Vallina Thesis 2007
The Bretherton Horrendogram
Mitchell K. Hobish, Earth Systems Science, Section 16, Remote Sensing Tutorial
http://rst.gsfc.nasa.gov/Sect16/Sect16_3.html